Differential for GMC Sierra: Sintered Metal
This differential for the GMC Sierra is specified around sintered metal, which decides how it behaves in service far more than the part name does. We build to a written specification — base material, dimensions, finish and packing — and hold that specification on file so every reorder reproduces the approved piece.
The usual reason a programme changes supplier is not unit price. It is documentation that arrived after the container shipped, or reorders that did not match the approved sample. Both are specification problems, and both are preventable.
Specification
| Product | Differential |
|---|---|
| Vehicle application | GMC Sierra |
| Material / finish | Sintered Metal |
| Typical use | Urban Courier Work |
| MOQ | 3,000 pieces per specification |
| Sampling | 10 working days, 5 days per revision |
| Bulk lead time | 20-30 days after approval |
| Compliance | ECE R90 |
| Packing | 50 pieces per inner box, 200 per carton |
Material options
- ABS Plastic — selected when the part is exposed to weather and road salt
- Powder Coated Steel — used when the finish has to hold a coating
- EPDM Rubber — selected when the part is exposed to weather and road salt
- Brass — the cost-effective default for volume programmes
- High Density Foam — specified where the part sits close to a heat source
Processes available
- anodising
- rubber vulcanisation
- laser cutting
- heat treatment
- robot welding
- CNC machining
Fitment notes
Check whether the mounting points on your market version match the catalogue drawing — regional variants are the usual cause of a wrong first order.
Where it is used
The specification above is the one most often ordered for urban courier work. Related applications include long-distance touring, food delivery, rental fleets, adventure travel, off-road trails.
Quality and packing
- In-line inspection with AQL 4.0 sampling on every lot.
- Dimensional report issued against the approved drawing.
- Carton marking and barcode to your specification.
- Golden sample retained at the factory as the reorder reference.
Questions buyers ask
How long does sampling take?
Samples leave the factory in 10 working days, and each revision round adds about 5 days once you have seen the first piece.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the ECE R90-compliant build instead of a fresh interpretation.
Can you match an existing sample?
Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.
What is the minimum order quantity?
The standard MOQ is 3000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.
